Desynchronization-based congestion suppression for a star-type Internet system with arbitrary dimension

Desynchronization-based congestion suppression for a star-type Internet system with arbitrary dimension
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基于去同步的任意维星型互联网系统拥塞抑制

DOI:
10.1016/j.neucom.2017.05.023
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发表时间:
2017-11
期刊:
影响因子:
6
通讯作者:
Chung Kwok-wai
Chung Kwok-wai
中科院分区:
计算机科学2区
文献类型:
--
作者:
Zhang Shu;Xu Jian;Chung Kwok-wai

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抑制同步是互联网拥塞控制的核心问题。当前的去同步方案存在公平性崩溃的问题。通过引入状态反馈控制器,使得线性化系统在平衡点附近的特征向量的所有分量之和为零,提出了一种去同步方案。借助于多尺度方法,得到了控制器参数值发生去同步振荡的条件,并观察到了两种不同的去同步模式,即离散波和反同步,这取决于源数目的奇偶性。通过数值仿真验证了理论分析,验证了所提方案的有效性。
Suppression of synchronization is a central issue of the Internet congestion control. Current desynchronization scheme suffers from the breakdown of fairness. We propose a desynchronization scheme by introducing state feedback controllers in such a way that the sum of all components of the eigenvectors of the linearized system around the equilibrium is zero. With the aid of the method of multiple scales, the conditions on the values of controller parameters such that the desynchronous oscillation arises are obtained and two different patterns of desynchronization, i.e., discrete wave and anti-synchronization are observed, depending on the parity of number of sources. Numerical simulations are carried out to validate the theoretical analysis and the effectiveness of the proposed scheme is confirmed.
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